Results 31 to 40 of about 190,834 (283)

HST FUV Spectroscopy of Super Star Cluster A in the Green Pea Analog Mrk 71: Revealing the Presence of Very Massive Stars

The Astrophysical Journal, 2023
Mrk 71 is a low-metallicity ( Z = 0.16 Z _☉ ) starburst region in the local dwarf galaxy NGC 2366, hosting two super star clusters (SSCs A and B), and it is recognized as a Green Pea (GP) analog with SSC A responsible for the GP properties.
Linda J. Smith, M. S. Oey, Svea Hernandez, Jenna Ryon, Claus Leitherer, Stephane Charlot, Gustavo Bruzual, Daniela Calzetti, You-Hua Chu, Matthew J. Hayes, Bethan L. James, Anne E. Jaskot, Göran Östlin   +12 more
doaj   +1 more source

Evidence for the Strong Effect of Gas Removal on the Internal Dynamics of Young Stellar Clusters [PDF]

, 2006
We present detailed luminosity profiles of the young massive clusters M82-F, NGC 1569-A, and NGC 1705-1 which show significant departures from equilibrium (King and EFF) profiles.
Kroupa, N. Bastian, S. P. Goodwin
core   +2 more sources

Massive Young Clusters in Nearby Galaxies [PDF]

Symposium - International Astronomical Union, 2001
We study the size distribution of massive young clusters (MYCs) and of the cavities around them. We discuss the existence of two cluster populations and we find evidences for molecular cloud confinement in the early stages of development.
Jesus Maíz-Apellániz, Nolan R. Walborn
openaire   +1 more source

Universal Upper End of the Stellar Initial Mass Function in the Young and Compact LEGUS Clusters

The Astrophysical Journal, 2023
We investigate the variation in the upper end of the stellar initial mass function (uIMF) in 375 young and compact star clusters in five nearby galaxies within ∼5 Mpc. All the young stellar clusters (YSCs) in the sample have ages ≲ 4 Myr and masses above
Dooseok Escher Jung, Daniela Calzetti, Matteo Messa, Mark Heyer, Mattia Sirressi, Sean T. Linden, Angela Adamo, Rupali Chandar, Michele Cignoni, David O. Cook, Clare L. Dobbs, Bruce G. Elmegreen, Aaron S. Evans, Michele Fumagalli, John S. Gallagher III, Deidre A. Hunter, Kelsey E. Johnson, Robert C. Kennicutt Jr., Mark R. Krumholz, Daniel Schaerer, Elena Sabbi, Linda J. Smith, Monica Tosi, Aida Wofford   +23 more
doaj   +1 more source

GOALS-JWST: Revealing the Buried Star Clusters in the Luminous Infrared Galaxy VV 114

The Astrophysical Journal Letters, 2023
We present the results of a James Webb Space Telescope NIRCam investigation into the young massive star cluster (YMC) population in the luminous infrared galaxy VV 114.
Sean T. Linden, Aaron S. Evans, Lee Armus, Jeffrey A. Rich, Kirsten L. Larson, Thomas Lai, George C. Privon, Vivian U, Hanae Inami, Thomas Bohn, Yiqing Song, Loreto Barcos-Muñoz, Vassilis Charmandaris, Anne M. Medling, Sabrina Stierwalt, Tanio Diaz-Santos, Torsten Böker, Paul van der Werf, Susanne Aalto, Philip Appleton, Michael J. I. Brown, Christopher C. Hayward, Justin H. Howell, Kazushi Iwasawa, Francisca Kemper, David T. Frayer, David Law, Matthew A. Malkan, Jason Marshall, Joseph M. Mazzarella, Eric J. Murphy, David Sanders, Jason Surace   +32 more
doaj   +1 more source

How can young massive clusters reach their present-day sizes?

, 2015
The classic question that how young massive star clusters attain their shapes and sizes, as we find them today, remains to be a challenge. Both observational and computational studies of star-forming massive molecular gas clouds infer that massive ...
Banerjee, Sambaran, Kroupa, Pavel
core   +1 more source

The Mass Function of Super Giant Molecular Complexes and Implications for Forming Young Massive Star Clusters in the Antennae (NGC 4038/39)

, 2003
We have used previously published observations of the CO emission from the Antennae (NGC 4038/39) to study the detailed properties of the super giant molecular complexes with the goal of understanding the formation of young massive star clusters.
Casoli F., Christine D. Wilson, Garcia-Burillo S., Johansson L. E. B., Kramer C., Larsen S. S., Mirabel I. F., Motte F., Nicholas Scoville, Strong A. W., Suzanne C. Madden, Vassilis Charmandaris, Vigroux L.   +12 more
core   +2 more sources

The Size Distribution of Massive Young Clusters [PDF]

Symposium - International Astronomical Union, 2002
We have searched the WFPC2/HST archive for data on nearby massive young clusters with low extinction and we have analyzed 27 such objects. A clear dichotomy between objects with a compact core and without it is observed. We attribute this bimodality to the initial conditions of the parent giant molecular clouds and we discuss its implication towards ...
openaire   +1 more source

Gamma ray emission from embedded young massive star clusters unveiled by Fermi-LAT [PDF]

EPJ Web of Conferences
Massive star clusters (SCs) have been proposed as additional contributors to Galactic Cosmic rays (CRs), to overcome the limitations of supernova remnants (SNR) to reach the highest energy end of the Galactic CR spectrum.
Peron Giada, Morlino Giovanni, Amato Elena, Menchiari Stefano   +3 more
doaj   +1 more source

Demographics of Neutron Stars in Young Massive and Open Clusters [PDF]

The Astrophysical Journal Letters, 2020
Abstract Star clusters appear to be the ideal environment for the assembly of neutron star–neutron star (NS–NS) and black hole–neutron star (BH–NS) binaries. These binaries are among the most interesting astrophysical objects, being potential sources of gravitational waves (GWs) and gamma-ray bursts.
Giacomo Fragione, Sambaran Banerjee
openaire   +2 more sources